Line and surface defects for the free scalar field

DOI10.1007/JHEP01(2021)060zbMATH Open1459.81075arXiv2005.02413OpenAlexW3120684366MaRDI QIDQ2024227

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Publication date: 3 May 2021

Published in: (Search for Journal in Brave)

Abstract: For a single free scalar field in $dgeq2$ dimensions, almost all the unitary conformal defects must be `trivial' in the sense that they cannot hold interesting dynamics. The only possible exceptions are monodromy defects in $dgeq4$ and co-dimension three defects in $dgeq5$. As an intermediate result we show that the $n$-point correlation functions of a conformal theory with a generalized free spectrum must be those of the generalized free theory.

Full work available at URL: https://arxiv.org/abs/2005.02413

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